Interitter motion with spiral guide
The mechanisms, either simple or complex, to transform motion from rotational into intermittent are based on the same principle: the crown gears, or pinion gears have thet oothing placed in the middle of the surface;
in this way the contact between the gears is intermittent with a cyclical rotation clockwise and vice versa.
The element conducted can be a rack, a toothed gear or a rope.
